During the overnight trading session on July 30, the quantum computing sector saw broad gains, with all major stocks trading in positive territory. As of press time, sector leader IonQ (IONQ.US) performed steadily, trading at $36.73 in overnight hours, up 2.68% from its previous close of $35.77. The stock recorded significant gains during regular trading hours with active turnover, continuing its strong momentum into the overnight session.

D-Wave Quantum (QBTS.US) emerged as the top gainer in the overnight session, trading at $18.18, up 1.11% from the previous close of $17.98. Looking back at regular trading hours, the stock experienced high volatility, reaching an intraday high of $18.13 with significant amplitude, indicating strong investor interest in quantum computing concepts. Rigetti Computing (RGTI.US) traded at $15.08 in overnight hours, up 1.48%. During regular trading, the stock showed strong explosive power with gains approaching 12.40% at one point.

Quantum Computing Inc (QUBT.US) traded at $8.07 in overnight hours, up 0.62%. The stock performed impressively during regular trading hours, surging 9.86% at close, and maintained high-level consolidation in overnight trading. Overall, the quantum computing sector extended its daytime optimism into the overnight session, with investors maintaining expectations for industry technological breakthroughs and commercialization prospects, evidenced by clear capital inflow signals.